Improvement in pipe-joints



, To all whom it may concern:

for Gas, Water, and SteamfMans;

` joints, from `the fact vthatthe @anni @Wire yannick eLAamlor RAHWAY, NEW JERSEY.

`Letters Patent No. 106,122, dated'August 9, 1870.

` v I l IMPaovEME'NT IN PIPE-JoINTs. y m Y The Schedule referred to in these Letters Patent and making partout' the same Beit known that 1, 'PTRIGK Cmnmoi the city of Railway, inthe countyfof Union audrState of' New.4

Jersey, have'invented'certain Improvements in Joints and I do hereby declarethat, the following is afull and exact descriptionthcrcogrefercnce being `had to the accompanying` drawings. and to the letters of refcrence'marked thereon. l 4 .t i

The nature ofmy invention consists iu the provision of means for` connteracting the etiect of expansion 'and contraction incident to continuous lines ot'- metal `pipesf'ro'm which loss;

Flanges and bolts Jeannot be relied on for tight flanges are broken by thecontraction oi the pipes.`

` 1 It is well known that'leaded joints become loosened,

andcase serions loss fronrthe same cause.

Gas-pipes are subjected to great variations of temperature, from lthe `fact that the gas enters them at reryvanable degrees ofheat, andY also that theyhare exposed to the` changes in' the temperature of theveal-thin which they are imbedded.

` i Figure' 1 inthe accompanying drawings shows two i lengt-hs of pipe connected in a way that connteracts thezdestructive effects of` expansion and contraction i on the joints.

.The pipes a and` b'have iianges and catches, c, cast `or made fast on their ends.l l i i y A gland of thin metal, d, is inserted into the, ends of the pipes; g i A collar, e,'ot' any elastic` substance (gum caout-4 chone being preferred) is placed on the gland d.

When the pipesare drawn close together, with the elastic collar between' .t them, as above described, a

metal link, f, is placed on the catches orlngs c, either t ononeor bothfsides, as may .be desired, in snchlman-l i arisesjby reason of leakage fromtheloosenedjoin ner as to cause a compression ofthe elastic collar, the

ends of the pipes haring been previously coated with The ends of the pipes may be made so as to receive a round or elliptical gland, to hold the rubber collar,

4as in iig. 2, and be held together by the metal link-f,

i as show n in iig. 1.

One elastic link is sufficient for pipes of fonrinches diameter, and under.r t

The mode of laying and connecting these pipes 1s rery simple, and it can be done with great rapidity.

A;pipe is laid on the ground at the bottom of the trench; the thin metal gland is inserted in the end;

`the elastic collar is placed upon the gland; another pipe' is then put in connection 'by inserting the gland in its end, and pressing it close to the first pipe; the free end of the second, pipe is then held up until the elastic metal linkwill catch the projections or lugs on the ends ofthe pipes; it is then gently lowered to its placeiat the bottom of the trench, 'thus ltightly 'compressipgv the elast-ic collar between the ends of the pipes. i V y c f 1 What IA claim as my invention, and desire to secure by Letters Patent, is-

1. The elastic collar e, iu combination with the elastic metal link f, substantially as described.

2.- "lheiailges" and`l11gs c c,-in con'ibination with the elastic collar e andthe elastic metal links f.

x The metal gland d, in'combination with the elastic collar e, and the elastic metal links or ring f, and

the flanges and lugs c c.,

' PATRICK CLARK. Witnesses: Y

J .icon 1%..,SH0TWELL, RANDOLPH Ross. 

